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From: "Dan Williams" <dan.j.williams@intel.com>
To: "Haavard Skinnemoen" <hskinnemoen@atmel.com>
Cc: linux-kernel@vger.kernel.org,
"Shannon Nelson" <shannon.nelson@intel.com>,
"David Brownell" <david-b@pacbell.net>,
kernel@avr32linux.org, "Francis Moreau" <francis.moro@gmail.com>,
"Paul Mundt" <lethal@linux-sh.org>,
"Vladimir A. Barinov" <vbarinov@ru.mvista.com>,
"Pierre Ossman" <drzeus-list@drzeus.cx>
Subject: Re: [RFC v3 4/7] dmaengine: Add slave DMA interface
Date: Wed, 13 Feb 2008 12:07:26 -0700 [thread overview]
Message-ID: <e9c3a7c20802131107x4c9e6859p3bc6527b19c416cb@mail.gmail.com> (raw)
In-Reply-To: <1202834638-9009-4-git-send-email-hskinnemoen@atmel.com>
On Feb 12, 2008 9:43 AM, Haavard Skinnemoen <hskinnemoen@atmel.com> wrote:
[..]
> /**
> + * struct dma_slave_descriptor - extended DMA descriptor for slave DMA
> + * @async_tx: async transaction descriptor
> + * @client_node: for use by the client, for example when operating on
> + * scatterlists.
> + */
> +struct dma_slave_descriptor {
> + struct dma_async_tx_descriptor txd;
> + struct list_head client_node;
> +};
Can you explain a bit why client_node is needed? I do not think we
need dma_slave_descriptor if dma_unmap data / control is added to
dma_async_tx_descriptor. Hmm?
next prev parent reply other threads:[~2008-02-13 19:07 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-12 16:43 [RFC v3 1/7] dmaengine: Couple DMA channels to their physical DMA device Haavard Skinnemoen
2008-02-12 16:43 ` [RFC v3 2/7] dmaengine: Add dma_client parameter to device_alloc_chan_resources Haavard Skinnemoen
2008-02-12 16:43 ` [RFC v3 3/7] dmaengine: Add dma_chan_is_in_use() function Haavard Skinnemoen
2008-02-12 16:43 ` [RFC v3 4/7] dmaengine: Add slave DMA interface Haavard Skinnemoen
2008-02-12 16:43 ` [RFC v3 5/7] dmaengine: Make DMA Engine menu visible for AVR32 users Haavard Skinnemoen
2008-02-12 16:43 ` [RFC v3 6/7] dmaengine: Driver for the Synopsys DesignWare DMA controller Haavard Skinnemoen
2008-02-12 16:43 ` [RFC v3 7/7] Atmel MCI: Driver for Atmel on-chip MMC controllers Haavard Skinnemoen
2008-02-12 20:43 ` [RFC v3 5/7] dmaengine: Make DMA Engine menu visible for AVR32 users Olof Johansson
2008-02-12 22:13 ` Haavard Skinnemoen
2008-02-12 22:27 ` Dan Williams
2008-02-13 8:44 ` Haavard Skinnemoen
2008-02-13 7:21 ` [RFC v3 4/7] dmaengine: Add slave DMA interface Dan Williams
2008-02-13 8:03 ` Haavard Skinnemoen
2008-02-13 19:07 ` Dan Williams [this message]
2008-02-13 19:24 ` Haavard Skinnemoen
2008-02-15 9:53 ` Haavard Skinnemoen
2008-02-15 17:12 ` Nelson, Shannon
2008-02-18 13:29 ` Haavard Skinnemoen
2008-02-19 18:46 ` Nelson, Shannon
2008-02-16 20:06 ` Dan Williams
2008-02-18 13:22 ` Haavard Skinnemoen
2008-02-18 22:42 ` Dan Williams
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